BIOPAC® Systems, Inc. Logo

A06 Cockroach Ventral Nerve AP

View Cart “High Impedance Cables” has been added to your cart.

This PRO lesson illustrates action potentials as they function through the conduction of cockroach ventral nerve cords.

By administering soft puffs of air to the “anal cerci” one can provoke and view action potentials as they travel in axons through the ventral nerve cord. The cerci have hundred of tiny hairs connected to individual mechanoreceptors. The small hairs respond to touch and small changes in air currents. The cockroach uses this information to evade predators.

In this lesson, stainless steel needle electrodes are placed under the cockroach ventral nerve cord to record the nerve response to stimulation. A puff of air is presented to the cerci and the response is recorded. This particular lesson shows the information being passed along the ventral nerve cord. The axons traveling through the nerve result in amplitude data spikes during recording, allowing one to study this phenomenon up close.

Experimental Objectives

  1. Stimulate the cerci by puffs of air and touch.
  2. Record the response to the stimulation.
  3. Compare cercal response, left side vs. right.
  4. Determine the number of cercal hairs that must be stimulated to produce a ventral nerve response.

Tasks Performed by the Student

Videos

Biopac Student Lab Student Download

Student Prep & Distance Learning

Click the link(s) below for sample data and/or lesson procedure video(s), BSL PRO Lesson procedures (PDF) for human lessons*, and graph template files (*.gtl) for BSL PRO Lessons. If more than one .gtl is available, download the .gtl with the _suffix to match BSL version and hardware.

Lesson Hardware

This lesson requires a Biopac Student Lab (BSL) System and the following hardware. If your BSL System does not include all hardware items, expand your system by selecting required items below. For more details, review the Lesson: L# BSL Lessons - see the Lab Manual or launch BSL; A# and H# BSL PRO Lessons, click the PDF link above to review full setup, recording, and analysis procedures.

Item Name Cart
EL452 Needle electrode Unipolar 12 mm TP Add to Cart
EL452 Needle electrode Unipolar 12 mm TP Add to Cart
BSLCBL8 High-impedance Cable for MP36/36R, MP35 or MP45 Add to Cart
Spotlight On
free BIOPAC webinar

Eye Tracking and Mobile-Remote Participants

Learn how to set up eye tracking glasses and collect, analyze, and combine eye tracking & physiology data to extract the most value from your experiment.
– study mobile or remote participants
– capture areas of interest, fixations, heat maps, dwell time, and more
– synchronize with biometrics such as EEG, ECG, EDA, EMG/fEMG, RSP
– develop insights in ergonomics, product development, UI/UX, group dynamics, performance development, training, etc.
Webinar is LIVE on February 27th at 8 AM PT.

Register Now
Latest News

New Eye Tracking Glasses Bring Real-world Data to Academic Research

BIOPAC combines eye tracking with mobile data logging and physiology data collection to run experiments in the lab or in the real world BIOPAC Systems, Inc. is pleased to announce new eye tracking integration for researchers who conduct experiments from mobile participants in diverse locations. ETVision (EYE-ETV) eye tracking glasses now integrate with BIOPAC wireless systems and software, […]

New Citations | Utilizing VR and AcqKnowledge to Reduce Stress

 Impact of Green Space on Stress Reduction Research studies show that the increased exposure of urbanization, traffic noise and pollution has been correlated with increasing levels of stress. However, do greener, more natural environments provide the opposite effect, restoring human well-being and contributing in stress reduction? Researchers compared user experiences in Virtual Reality (VR) scenes […]

Read All
Request a Demonstration
Request a Demonstration